Finding the Fourth Proportional to 811,478.58, 1,119,830.85 and 448,873.98
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Solution
The fourth proportional to 811,478.58, 1,119,830.85 and 448,873.98 is: 619,440.79
Step by Step Solution
- Step 1: Write the proportion equation
811,478.58 : 1,119,830.85 = 448,873.98 : x - Step 2: Convert to fraction form
811,478.58/1,119,830.85 = 448,873.98/x - Step 3: Cross multiply
811,478.58x = 1,119,830.85 × 448,873.98 - Step 4: Simplify right side
811,478.58x = 502,662,930,566.28 - Step 5: Solve for x
x = 502,662,930,566.28/811,478.58 - Step 6: Final answer
x = 619,440.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.